Electric Bicycle Pedal Load Booster for Adaptive Speed Control
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Solution Overview
Problem
Conventional electric bicycle driving apparatuses are limited in adapting pedal stepping operations to low-speed or high-speed motor driving modes, both when the bicycle is stationary and in motion, failing to provide an optimum motor driving experience.
Innovation Solution
An electric bicycle driving apparatus comprising a speed change mode operator, controller, generation-signal provider, stepping operation load booster, and stepping operation provider, which outputs low-speed or high-speed mode signals to adapt pedal driving based on the bicycle's state, using rectifying diodes, capacitors, and switching devices to boost and regulate signals for optimal motor operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional driving apparatus uses a single pedal stepping operation mode, then the device complexity is reduced, but the adaptability to different speed modes (low-speed and high-speed) deteriorates
Solution Approach 1:
The patent implements dynamic switching between different pedal stepping operation modes based on the current speed mode. A mode switching operator detects whether the bicycle is in low-speed or high-speed mode and dynamically adjusts the pedal stepping characteristics accordingly, allowing the system to adapt its behavior without requiring separate fixed systems for each mode.
Solution Approach 2:
The patent changes the parameters of the pedal stepping operation based on the speed mode. Specifically, it adjusts the stepping signal characteristics (such as frequency, amplitude, or timing) to match the requirements of low-speed or high-speed operation, enabling optimal performance across different operating conditions without increasing fundamental system complexity.
2Productivity
If the pedal stepping operation is optimized for one speed mode, then the productivity for that mode is improved, but the adaptability to other speed modes deteriorates
Solution Approach 1:
The system dynamically adjusts the pedal stepping operation parameters based on the detected speed mode, ensuring optimal motor driving efficiency whether operating in low-speed or high-speed mode. The mode switching operator enables real-time adaptation of the stepping characteristics to match current operational requirements.
Solution Approach 2:
The patent creates a universal pedal stepping operation system that can function effectively across multiple speed modes. By designing the stepping operation provider to respond to different mode signals, the system achieves multi-functionality, delivering optimized performance for both low-speed and high-speed operations through a single integrated mechanism.
Data Source
AI summary
An electric-bicycle driving apparatus includes a speed change mode operator to output a low-speed mode signal or a high-speed mode signal, a controller to receive the low-speed mode signal or high-speed mode signal outputted from the speed change mode operator and to output a first control signal corresponding to the low-speed mode signal or a second control signal corresponding to the high-speed mode signal, a generation-signal provider to provide a generation signal outputted from a generator, and a stepping operation load booster to boost a load of the generation signal outputted from the generation-signal provider by receiving the first control signal or second control signal when the speed change mode operator outputs the low-speed mode signal or high-speed mode signal, and to send a stepping operation provider a resulting signal of the boost in a stepping operation signal corresponding to the low-speed mode signal or high-speed mode.